See in clear high definition everywhere you turn wearing the Oakley® Flak 2.0 XL PRIZM Sunglasses. The XL model uses enhanced coverage and specialized curvature to increase protection against the elements, and Unobtanium® earsocks and nosepads boost grip and fit. Patented High Definition Optics® partners with XYZ Optics® to push the limits of clarity, and the O-Matter™ frame material is built to last without weighing you down. FEATURES: Perfect for any activity XL model offers enhanced lens coverage and specialized lens curvature for protection against sun, wind, and impact Unobtanium® earsocks and nosepads increase grip, even when perspiring High Definition Optics® (HDO®), a group of technologies, helps meet or exceed standards for optical clarity, visual fidelity, and impact resistance Patented XYZ Optics® geometry prevents distortion and provides razor-sharp clarity at every angle O-Matter™ stress-resistant frame material improves durability without sacrificing comfort PRIZM™ lens technology fine-tunes vision for specific sports and envrionments Standard fit Model: OO9188-03